// SPDX-License-Identifier: MPL-2.0
// (c) Hare authors <https://harelang.org>

use bytes;
use crypto::cipher;

const key_vectors: [_][8]u8 = [
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
	[0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10],
	[0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57],
	[0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E],
	[0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86],
	[0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E],
	[0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6],
	[0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE],
	[0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6],
	[0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE],
	[0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16],
	[0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F],
	[0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46],
	[0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E],
	[0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76],
	[0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07],
	[0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F],
	[0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7],
	[0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF],
	[0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6],
	[0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF],
	[0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01],
	[0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E],
	[0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE],
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10],
];

const clear_vectors: [_][8]u8 = [
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
	[0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01],
	[0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
	[0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0x01, 0xA1, 0xD6, 0xD0, 0x39, 0x77, 0x67, 0x42],
	[0x5C, 0xD5, 0x4C, 0xA8, 0x3D, 0xEF, 0x57, 0xDA],
	[0x02, 0x48, 0xD4, 0x38, 0x06, 0xF6, 0x71, 0x72],
	[0x51, 0x45, 0x4B, 0x58, 0x2D, 0xDF, 0x44, 0x0A],
	[0x42, 0xFD, 0x44, 0x30, 0x59, 0x57, 0x7F, 0xA2],
	[0x05, 0x9B, 0x5E, 0x08, 0x51, 0xCF, 0x14, 0x3A],
	[0x07, 0x56, 0xD8, 0xE0, 0x77, 0x47, 0x61, 0xD2],
	[0x76, 0x25, 0x14, 0xB8, 0x29, 0xBF, 0x48, 0x6A],
	[0x3B, 0xDD, 0x11, 0x90, 0x49, 0x37, 0x28, 0x02],
	[0x26, 0x95, 0x5F, 0x68, 0x35, 0xAF, 0x60, 0x9A],
	[0x16, 0x4D, 0x5E, 0x40, 0x4F, 0x27, 0x52, 0x32],
	[0x6B, 0x05, 0x6E, 0x18, 0x75, 0x9F, 0x5C, 0xCA],
	[0x00, 0x4B, 0xD6, 0xEF, 0x09, 0x17, 0x60, 0x62],
	[0x48, 0x0D, 0x39, 0x00, 0x6E, 0xE7, 0x62, 0xF2],
	[0x43, 0x75, 0x40, 0xC8, 0x69, 0x8F, 0x3C, 0xFA],
	[0x07, 0x2D, 0x43, 0xA0, 0x77, 0x07, 0x52, 0x92],
	[0x02, 0xFE, 0x55, 0x77, 0x81, 0x17, 0xF1, 0x2A],
	[0x1D, 0x9D, 0x5C, 0x50, 0x18, 0xF7, 0x28, 0xC2],
	[0x30, 0x55, 0x32, 0x28, 0x6D, 0x6F, 0x29, 0x5A],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
	[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
];

const cipher_vectors: [_][8]u8 = [
	[0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78],
	[0x51, 0x86, 0x6F, 0xD5, 0xB8, 0x5E, 0xCB, 0x8A],
	[0x7D, 0x85, 0x6F, 0x9A, 0x61, 0x30, 0x63, 0xF2],
	[0x24, 0x66, 0xDD, 0x87, 0x8B, 0x96, 0x3C, 0x9D],
	[0x61, 0xF9, 0xC3, 0x80, 0x22, 0x81, 0xB0, 0x96],
	[0x7D, 0x0C, 0xC6, 0x30, 0xAF, 0xDA, 0x1E, 0xC7],
	[0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78],
	[0x0A, 0xCE, 0xAB, 0x0F, 0xC6, 0xA0, 0xA2, 0x8D],
	[0x59, 0xC6, 0x82, 0x45, 0xEB, 0x05, 0x28, 0x2B],
	[0xB1, 0xB8, 0xCC, 0x0B, 0x25, 0x0F, 0x09, 0xA0],
	[0x17, 0x30, 0xE5, 0x77, 0x8B, 0xEA, 0x1D, 0xA4],
	[0xA2, 0x5E, 0x78, 0x56, 0xCF, 0x26, 0x51, 0xEB],
	[0x35, 0x38, 0x82, 0xB1, 0x09, 0xCE, 0x8F, 0x1A],
	[0x48, 0xF4, 0xD0, 0x88, 0x4C, 0x37, 0x99, 0x18],
	[0x43, 0x21, 0x93, 0xB7, 0x89, 0x51, 0xFC, 0x98],
	[0x13, 0xF0, 0x41, 0x54, 0xD6, 0x9D, 0x1A, 0xE5],
	[0x2E, 0xED, 0xDA, 0x93, 0xFF, 0xD3, 0x9C, 0x79],
	[0xD8, 0x87, 0xE0, 0x39, 0x3C, 0x2D, 0xA6, 0xE3],
	[0x5F, 0x99, 0xD0, 0x4F, 0x5B, 0x16, 0x39, 0x69],
	[0x4A, 0x05, 0x7A, 0x3B, 0x24, 0xD3, 0x97, 0x7B],
	[0x45, 0x20, 0x31, 0xC1, 0xE4, 0xFA, 0xDA, 0x8E],
	[0x75, 0x55, 0xAE, 0x39, 0xF5, 0x9B, 0x87, 0xBD],
	[0x53, 0xC5, 0x5F, 0x9C, 0xB4, 0x9F, 0xC0, 0x19],
	[0x7A, 0x8E, 0x7B, 0xFA, 0x93, 0x7E, 0x89, 0xA3],
	[0xCF, 0x9C, 0x5D, 0x7A, 0x49, 0x86, 0xAD, 0xB5],
	[0xD1, 0xAB, 0xB2, 0x90, 0x65, 0x8B, 0xC7, 0x78],
	[0x55, 0xCB, 0x37, 0x74, 0xD1, 0x3E, 0xF2, 0x01],
	[0xFA, 0x34, 0xEC, 0x48, 0x47, 0xB2, 0x68, 0xB2],
	[0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE],
	[0xC3, 0x9E, 0x07, 0x2D, 0x9F, 0xAC, 0x63, 0x1D],
	[0x01, 0x49, 0x33, 0xE0, 0xCD, 0xAF, 0xF6, 0xE4],
	[0xF2, 0x1E, 0x9A, 0x77, 0xB7, 0x1C, 0x49, 0xBC],
	[0x24, 0x59, 0x46, 0x88, 0x57, 0x54, 0x36, 0x9A],
	[0x6B, 0x5C, 0x5A, 0x9C, 0x5D, 0x9E, 0x0A, 0x5A],
];

@test fn encrypt() void = {
	for (let i = 0z; i < len(key_vectors); i += 1) {
		const key = key_vectors[i];
		const clear = clear_vectors[i];
		const cipher = cipher_vectors[i];

		const bf = new();
		defer cipher::finish(&bf);

		init(&bf, key);

		let buf: [8]u8 = [0...];
		cipher::encrypt(&bf, buf, clear);
		assert(bytes::equal(cipher, buf));
	};
};

@test fn decrypt() void = {
	for (let i = 0z; i < len(key_vectors); i += 1) {
		const key = key_vectors[i];
		const clear = clear_vectors[i];
		const cipher = cipher_vectors[i];

		const bf = new();
		defer cipher::finish(&bf);

		init(&bf, key);

		let buf: [8]u8 = [0...];
		cipher::decrypt(&bf, buf, cipher);
		assert(bytes::equal(clear, buf));
	};
};

const salted_vectors: [_][8]u8 = [
	[0x0c, 0x82, 0x3b, 0x7b, 0x8d, 0x01, 0x4b, 0x7e],
	[0xd1, 0xe1, 0x93, 0xf0, 0x70, 0xa6, 0xdb, 0x12],
	[0xfc, 0x5e, 0xba, 0xde, 0xcb, 0xf8, 0x59, 0xad],
	[0x8a, 0x0c, 0x76, 0xe7, 0xdd, 0x2c, 0xd3, 0xa8],
	[0x2c, 0xcb, 0x7b, 0xee, 0xac, 0x7b, 0x7f, 0xf8],
	[0xbb, 0xf6, 0x30, 0x6f, 0xe1, 0x5d, 0x62, 0xbf],
	[0x97, 0x1e, 0xc1, 0x3d, 0x3d, 0xe0, 0x11, 0xe9],
	[0x06, 0xd7, 0x4d, 0xb1, 0x80, 0xa3, 0xb1, 0x38],
	[0x67, 0xa1, 0xa9, 0x75, 0x0e, 0x5b, 0xc6, 0xb4],
	[0x51, 0x0f, 0x33, 0x0e, 0x4f, 0x67, 0xd2, 0x0c],
	[0xf1, 0x73, 0x7e, 0xd8, 0x44, 0xea, 0xdb, 0xe5],
	[0x14, 0x0e, 0x16, 0xce, 0x7f, 0x4a, 0x9c, 0x7b],
	[0x4b, 0xfe, 0x43, 0xfd, 0xbf, 0x36, 0x04, 0x47],
	[0xb1, 0xeb, 0x3e, 0x15, 0x36, 0xa7, 0xbb, 0xe2],
	[0x6d, 0x0b, 0x41, 0xdd, 0x00, 0x98, 0x0b, 0x19],
	[0xd3, 0xce, 0x45, 0xce, 0x1d, 0x56, 0xb7, 0xfc],
	[0xd9, 0xf0, 0xfd, 0xda, 0xc0, 0x23, 0xb7, 0x93],
	[0x4c, 0x6f, 0xa1, 0xe4, 0x0c, 0xa8, 0xca, 0x57],
	[0xe6, 0x2f, 0x28, 0xa7, 0x0c, 0x94, 0x0d, 0x08],
	[0x8f, 0xe3, 0xf0, 0xb6, 0x29, 0xe3, 0x44, 0x03],
	[0xff, 0x98, 0xdd, 0x04, 0x45, 0xb4, 0x6d, 0x1f],
	[0x9e, 0x45, 0x4d, 0x18, 0x40, 0x53, 0xdb, 0xef],
	[0xb7, 0x3b, 0xef, 0x29, 0xbe, 0xa8, 0x13, 0x71],
	[0x02, 0x54, 0x55, 0x41, 0x8e, 0x04, 0xfc, 0xad],
	[0x6a, 0x0a, 0xee, 0x7c, 0x10, 0xd9, 0x19, 0xfe],
	[0x0a, 0x22, 0xd9, 0x41, 0xcc, 0x23, 0x87, 0x13],
	[0x6e, 0xff, 0x1f, 0xff, 0x36, 0x17, 0x9c, 0xbe],
	[0x79, 0xad, 0xb7, 0x40, 0xf4, 0x9f, 0x51, 0xa6],
	[0x97, 0x81, 0x99, 0xa4, 0xde, 0x9e, 0x9f, 0xb6],
	[0x12, 0x19, 0x7a, 0x28, 0xd0, 0xdc, 0xcc, 0x92],
	[0x81, 0xda, 0x60, 0x1e, 0x0e, 0xdd, 0x65, 0x56],
	[0x7d, 0x76, 0x20, 0xb2, 0x73, 0xc9, 0x9e, 0xee],
];

@test fn salted() void = {
	let key: [32]u8 = [0...];
	let salt: [32]u8 = [0...];
	for (let i = 0z; i < len(key); i += 1) {
		key[i] = i: u8;
		salt[i] = i: u8 + 32;
	};
	for (let i = 0z; i < len(salted_vectors); i += 1) {
		let bf = new();
		init_salt(&bf, key, salt[..i]);
		let buf: [8]u8 = [0...];
		cipher::encrypt(&bf, buf, buf);
		assert(bytes::equal(buf, salted_vectors[i]));
	};
};
